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12006222 = 232001037
BaseRepresentation
bin101101110011…
…001101001110
3211120222102220
4231303031032
511033144342
61105200210
7204023364
oct55631516
924528386
1012006222
1168604a8
124030066
132644a97
141847634
1510c25ec
hexb7334e

12006222 has 8 divisors (see below), whose sum is σ = 24012456. Its totient is φ = 4002072.

The previous prime is 12006217. The next prime is 12006223. The reversal of 12006222 is 22260021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000513 + ... + 1000524.

It is an arithmetic number, because the mean of its divisors is an integer number (3001557).

Almost surely, 212006222 is an apocalyptic number.

12006222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12006222 is a wasteful number, since it uses less digits than its factorization.

12006222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001042.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12006222 is about 3464.9995670995. Note that the first 3 decimals coincide. The cubic root of 12006222 is about 228.9824106295.

Adding to 12006222 its reverse (22260021), we get a palindrome (34266243).

The spelling of 12006222 in words is "twelve million, six thousand, two hundred twenty-two".

Divisors: 1 2 3 6 2001037 4002074 6003111 12006222